| article html file updated | 8 February 2020 17:21 CET | Update | https://www.mdpi.com/2078-2489/8/4/120 |
| article html file updated | 27 September 2019 10:19 CEST | Update | - |
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| article html file updated | 2 January 2018 13:33 CET | Update | - |
| article html file updated | 28 September 2017 09:52 CEST | Original file | - |
| article xml uploaded. | 28 September 2017 09:51 CEST | Original file | https://www.mdpi.com/2078-2489/8/4/120/xml |
| article pdf uploaded. | 28 September 2017 09:51 CEST | Version of Record | https://www.mdpi.com/2078-2489/8/4/120/pdf |
